Our data support the notion that CB(1) receptor stimulation impairs sensorimotor gating most likely by modulation of neurotransmitter release in mPFC and vHIP. The lack of effects of local WIN infusions in NAc and VTA might be due to low receptor abundance in these regions. Additionally, CB(1) receptor activation in dHIP impairs spatial memory retrieval. Taken together, cortico-hippocampal cannabinoid receptors play an essential role in the regulation of cognitive and behavioural processes.
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